TY  - RPRT
TI  - Preliminary geologic map of the St. Thomas 7.5-minute quadrangle, Clark County, Nevada, and Mohave County, Arizona
AU  - L. S. Beard
PY  - 1992
DO  - 10.3133/ofr92326
UR  - https://pubs.usgs.gov/publication/ofr92326
ID  - ofr92326
ER  -